As data quantities increase exponentially, even as budgets remain constrained, the challenge of running a strategic data center becomes ever greater. Inefficiency in power and cooling can raise costs to an unacceptable level. To run a strategic data center, managers must pursue a three-pronged approach to measure, improve and maintain the Power Unit Efficiency (PUE) of their equipment. A strategic data center enables a company to spend its IT budget on transformative business projects, a major achievement.